Has anyone tried these?

Ok, in addition to my normal prenatal vitamins, I'm going to start taking FertileCM and Ovoboost.  Any opinions on these? Has anyone tried and they screwed you up?  I tried geritol last cycle and my af ended up being almost a week late, so I don't think that is going to work for me.  Any advice on the others is much needed.  Thanks!  Oh, 36 years old and ttc #1 for about 5 months(just now getting super serious!)